Research On The Multi-source Information Fusion Theory And Method In Smart Construction

Smart construction is a new construction concept which is proposed with the integrated application of emerging information technologies such as BIM,Internet of Things(IoT),big data,cloud computing,wireless communication network and artificial intelligence in modern engineering construction.There are full of big data and multi-source information in smart construction with the integrated application of emerging information technologies.These data and information are not only the complex interaction products of multi-objective information sources in the smart construction.Moreover,it is still an important strategic resource of the information fusion in smart construction.In the current development of science and technology,both of management and multi-source information fusion application in smart construction have to face these problems such as multi-objective information source selection and application,multi-source information recognition and correlation.This thesis reviews the research status of smart construction,information fusion and technology acceptance model,and points out the problems of existing research and the conditions of this research based on the scientific bibliometrics study.Then,the transformation essence from traditional construction to smart construction is revealed,and the “smart” connotation of smart construction and its related concepts are clarified based on science and philosophy of science and technology.Meanwhile,as the scientific methods such as information resource management theory,information fusion theory,intelligent computing and recognition theory,spatial information organization theory and technological innovation theory,etc.are provided,a collaborative framework between the related research contents and these theoretical foundations is built,which makes preparation for the necessary conditions of the following study.With the guidance of statistical inference and D-S evidence source rule of information fusion theory,the multi-objective information source selection rule is built.Meanwhile,the multi-objective information source optimization model of smart construction is built based on human and technical factors.Besides that,with the cooperation of information fusion and information resource management theories,multi-objective information source IoT access system of smart construction is built based on the realization principle of physical IoT.At last,the evaluation model of multi-objective information source selection is built with the basic information source selection principles in this paper.This thesis not only describes the process of multi-source information perception,in study of the multi-source information recognition method of smart construction,but also analyzes the perceptibility of multi-source information in smart construction base on collaboration between information resource management theory,information fusion theory,and intelligent computing and recognition theory.In addition,the multi-source information preprocessing and feature recognition models of smart construction are built with the support of information resource management theory and information fusion theory.Then,the simulation analysis of these models is carried out.With the synergy of information fusion theory and spatial information organization theory,the spatiotemporal conditions on which the smart construction information is associated,and the information interaction state in it are revealed by analyzing the spatiotemporal interaction state and its subdivision principle of smart construction.Then,both of the information interaction description model and the information association UML models of the smart construction are built based on the excavated wisdom construction spatiotemporal interaction state.Then,with the information resource management theory,the information identification,coding,association expression and system implementation architecture of smart construction spatiotemporal are formed.In this thesis,the multi-source information fusion theory and method of this research is applied with the practical smart construction project.Meanwhile,with the guidance of technological innovation theory,the EITAM model of multi-source information fusion application in smart construction is built,and the current technology acceptance impact factors of multi-source information fusion application in smart construction are analyzed,and the future development trend of multi-source information fusion application technology in smart construction is revealed.In this thesis,various theories and methodologies are used,and the major issues are following: The mechanism of multi-objective information source selection,optimization,and IoT access in smart construction is deeply analyzed.The methods of multi-source information perceptible state,preprocessing process and feature recognition in smart construction are built.The spatiotemporal interaction state,target information and related systems that are depended on by the smart construction are studied.The technology acceptance model of multi-source information fusion application in smart construction is studied.Finally,the core knowledge system of multi-source information fusion theory and method in smart construction is formed.It is not only helpful to the information resource's utilization of smart construction,but also it can promote the technological innovation and development of information fusion in smart construction.